Europe's first underwater restaurant is set to open in the cool, crisp waters of southern Norway.

The very cool and chic-looking restaurant, Under, is located in Baly Bay in Lindesnes, around five hours' drive from Oslo.

While it's not the first under-the-sea dining experience in the world - there are similar restaurants in the Maldives and Dubai - Under is the first to hit Europe and, given the cold climate, is set to offer a whole different perspective on underwater life.

The architects behind the development, Snøhetta, says the structure will sit five metres below sea level on the ocean floor, with the entrance accessible via the shore. To both withstand and assimilate to its surrounding environment, the rectangular-shaped venue will have one-metre thick concrete walls, ribbed to encourage mussels and moluscs to stick to the building, creating a new mussel reef.

The restaurant has three levels, a "wardrobe" level, a champagne bar and, finally, the restaurant.